Hydrodynamic Anisotropy Analysis on 3D Elongated Porous Domain Subjected to Thermosolutal Cross Fluxes

In this study, double-diffusive natural convection in an elongated enclosure was investigated using three-dimensional numerical simulations. The enclosure contains a binary fluid saturating an anisotropic porous medium. On the horizontal and vertical walls, Neumann cross boundary conditions were imposed for temperature and concentration. To solve the coupled Navier-Stocks governing equations, a tridimensional computational home code is developed; based on finite volume method. The main purpose of this work is to analyze the effect of the porous hydrodynamic anisotropy, on the instability of the convective regime, which describes the 2D-3D flow limitation. Depending on the dominance of the preferential permeability Kx, Ky or Kz, we describe through an interesting map the limitations of the flow regimes and their effects on heat and mass transfer.